Kontron KTQM87-mITX - Manual (Page 44)

KTD-N0886-A Page 42 Internal Connectors
KTQM87/mITX Users Guide
SPI Connector (J32) 7.14
The SPI Connector is normally not used. If however a SPI BIOS is connected via the SPI Connector then the
board will attempt to boot from it.
Note Pull U/D Ioh/Iol Type Signal PIN Signal Type Ioh/Iol Pull U/D Note
1 - CLK 1 2 SB3V3 PWR - -
- I CS0# 3 4 ADDIN IO /10K
10K/ - NC 5 6 NC - - -
10K/ IO MOSI 7 8 ISOLATE# IO 100K
- IO MISO 9 10 GND PWR - -
1K IO SPI_IO2_#WP 11 12 SPI_IO3_#HOLD IO 1K
Signal Description
CLK Serial Clock
SB3V3
3.3V Standby Voltage power line. Normally output power, but when Motherboard is
turned off then the on-board SPI Flash can be 3.3V power sourced via this pin.
CS0# CS0# Chip Select 0, active low.
ADDIN ADDIN input signal must be NC.
MOSI Master Output, Slave Input.
ISOLATE#
The ISOLATE# input, active low, is normally NC, but must be connected to GND when
programming the SPI flash. Power Supply to the Motherboard must be turned off when
loading SPI flash. The pull up resistor is connected via diode to 5VSB.
MISO Master Input, Slave Output
SPI_IO2_#WP
SPI Data I/O: A bidirectional signal used to support Dual IO Fast Read, Quad IO Fast Read
and Quad Output Fast Read modes. The signal is not used in Dual Output Fast Read mode.
SPI_IO3_#HOLD SPI Data I/O: A bidirectional signal used to support Dual IO Fast Read, Quad IO Fast Read
and Quad Output Fast Read modes. The signal is not used in Dual Output Fast Read mode.